Wire-working die.



UNITE YPATENT OFFICE.

SHELDON E. JACKSON AND EPHRAIM B. LEE, OF WESTON, MICHIGAN.

WIRE-WORKING DIE.

Specication of Letters Patent.

Batented April 10, 1906.

Application filed June 3,1905. Serial No. 263,603.

To @ZZ whom it may concern:

Beit known that we, SHELDON E. JACKSON and EPHRAIM B. LEE, both citizensof the United States, and residents of Wieston, in the county of Lenaweeand State of Michigan, have invented a new and Improved rire- TorkingDie, of which the 'following is a full, clear, and exact description.

Our invention relates to a die for working wire to form a joint or lock,and is especially' adapted for forming fence-locks and for securingtogether any two crossing wires or the like.

The principalobjects of the invention are to provide means for formingsuch a joint or lock in a vertical position and still have an angle ineach of the vertical wires which it connects, therefore making itimpossible for the lock to slide up and down.

A further object of the invention is to cause the lock-wire to wraparound the line and stay once and then again around the linewire, witheach end of the lock-wire lying against the stay-wire. This also assistsin preventing sliding of the parts upon each other. Additional objectswill be mentioned.

Reference is to be had to the accompanying drawings, forming a part ofthis speciiication, in which similar characters of reference indicatecorresponding parts in all the iigures.

Figure l is a perspective view showing the parts of a die provided withour improvements and separated from each other. Fig. 2 is a sectionalview on the lines 2 2 of Figs. 3 and 4, showing the dies in position forforming the lock. Fig. 3 is a sectional view on the line 3 3 of Fig. 2.Fig. 4 is a bottom plan view of the upper main die. Fig. 5 is a plan ofthe lower die, and Fig. 6 is a front elevation of a lock constructed bythe dies shown.

The invention will be described especially with reference to thenianufacure of fencelocks such as that shown in Fig. 6. In this figure astay-wire (t crosses a line-wire l) and is secured to it by alocking-wire c. The stay-wire is provided with a bend or odset a', bymeans of which the lock and line wires are prevented from sliding alongthe stay-wire. T he lockingavire passes around both the line and staywire once and then a second time around the line -wire, each end of itlying against the stay-wire. This helps also in secu-ring the device inposition and for prei venting its displacement. For making this lock twomain dies (l and c are preferably employed and an auxiliary die f,adapted to pass through a slot e in the upper main die. The lower die isprovided in its upper face with a longitudinal groove d@ which isprefably straight in order to hold the line-wire The upper die isprovided on its lower face with a transverse groove e2, having offsetse3 for the reception of the stay-wire e. This groove is wider than thestay-wire, and for the purpose of holding the stay-wire in the properposition and providing the bend a therein a series of pins or studs g,g', g2, and g3 are provided, projecting downwardly from the Aface of theupper die. The studs q and g3 are located with their edges coincidentwith the edges of the groove c2 and on the outside thereof; but thestuds g and g2 are located within the groove e2. The distance betweenthe inner edges of the pins g and g2 and the opposite sides of thegroove c2 is sufficient to permit the wire a to pass through, but notsuflicient to give it any appreciable amount of play. Consequently whenthe wire is passed through this groove between the pins it will beforced to assume a position with the bend a passing across the center ofthe perforation e. In order to guide the wire into this position, theinner surfaces of the pins g, g, g2, and g3 are slanted. This isindicated most clearly in Fig. 1. Dowel-pins h, entering dowel-holes t,are provided to guide the dies, and holes 7 are also provided in theupper face of the lower block to receive the pins g, g', g2, and g3.

The offset e3 of the groove c2 is provided with curved edgescorresponding to the shape which it is desired to impart to the upperportion of the locking-wire. These curved portions with the slot e andthe curved lower portion f of the plunger f constitute three recessesfor receiving the locking-wire and for giving it the desired shape, sothat it will pass around the line and staywires in the mannerdescribedabove. In the die (Z a pair of grooves cl2 are provided, which in shapeare similar to the ofi'set portions c3 of the groove c2, but are locatedat an angle to the groove d, so as to afford two recesses for thereception of the locking-wire. It will be observed that when the wire bis placed in the groove d/ and the wire e placed across it, so as topass centrally over vthe depression (12, the lowering of the block cwill cause the wire ar to assume the bent form. If now a wire c in theform of a staple is forced in through the groove e/ by means of theplunger f, its ends will be forced by the curved IOO IIO

portions of the grooves d2 and e3 to wrap around. the wires c and b inthe manner specified. This constitutes the final operation of formingthe lock and illustrates one manner of using our invention.

Having thus described our invention, we claim as new and desire tosecure by Letters Patentw l. A wire-working die having a groove thereinfor receiving a wire, and means for bending said wire, said meanscomprising a series of pins located on two sides of the groove andadapted to engage the sides of the wire located in the groove.

2. A set of wire-working dies, comprising a main lower die having agroove therein for receiving a wire, a main upper die having a groovetherein transverse to the first-mentioned groove for receiving a secondwire, and means for bending said second wire; said means comprising aseries of pins located adjacent to the last-mentioned groove and adaptedto engage the wire located in said groove.

3. A set of wire-working dies, comprising a main lower die having alongitudinal straight groove for receiving a wire, and an upper main diehaving a transverse groove provided with an offset portion for receivinga second wire, said upper' die being provided with a series of pinslocated adjacent to said second groove and` adapted to engage the wirein the groove and form a bend therein, each of said pins being providedwith a slanting lower surface for guiding the wire into bendingposition, and the first-mentioned die having openings for receiving saidpins.

4. A set of wire-working dies, comprising a main lower die having alongitudinal straight groove for receiving a wire, and an upper main diehaving a transverse groove provided with an offset portion for receivinga second wire, said upper die being provided with a series of pinslocated adjacent to said second groove and adapted to engage the wire inthe groove and form a bend therein, each of said pins being providedwith a slanting lower surface for guiding the wire into bendingposition, and the first-mentioned die having openings for receiving saidpins said dies being provided with means for guiding them in straightlines toward each other.

5. A set of wire-working dies, comprising a main lower die having alongitudinal straight groove for receiving a wire, and an upper main diehaving a transverse groove provided with an offset portion for receivinga second wire, said upper die being provided with a series of pinslocated adjacent to said second groove and adapted to engage the wire inthe groove and form a bend therein, each of said pins being providedwith a slanting lower surface for guiding the wire into bendingposition, and the first-mentioned die having openings for receiving saidpins,

said dies also being provided with depressions having curved surfacesfor bending a locking-wire about the two first-mentioned wires.

6. A set of wire-working dies, comprising a main lower die and a mainupper die having a groove provided with an offset portion for receivinga wire, said upper die also being provided with a series of pins locatedadjacent to the groove and adapted to engage the wire in the groove andform a bend therein, each of said pins being provided with a slantinglower surface for guiding the wire into bending position, and thefirst-mentioned die having openings for receiving said pins.

7. A set of wire-working dies, comprising a main lower die and a mainupper die havin a groove provided with an offset portion for receiving awire, said upper die also being provided with a series of pins locatedadjacent to the groove and adapted to engage the wire in the groove and.form a bend therein.

8. A set of wire-working dies comprising a die having a groove forreceiving a wire, and a second die having a groove provided with anoffset portion for receiving a second wire, said second die beingprovided with a series of pins located adjacent to said second groove,each of said pins being provided with a slanting lower surface, and thefirst-mentioned die having openings for receiving said pins.

9. A set of dies comprising a die having a groove provided with anoffset portion on each side of the groove for receiving a wire, and asecond die having two grooves located at an angle to the said offsetportion.

10. A set of dies comprising a die having a groove provided. with anoffset portion on each side of the groove for receiving a wire, and asecond die having two grooves located at an angle to the said offsetportion; said offset portions and grooves having curved surfaces attheir ends to bend the wire into approximately circular forni.

11. A set vof dies comprising a die having a groove provided with anoffset portion on each side of the groove for receiving a wire, a seconddie having two grooves located at an angle to the said offset portion,said first die having aperforation from its main groove between saido'ffsets, and a third die adapted to operate in said perforation.

12. A wire-working die having a groove, an offset on each side of thegroove, and a pin located partly to one side of each offset with itsside projecting part way into the groove.

In testimony whereof we have signed our names to this specification inthe presence of subscribing witnesses.

SHELDON E. JACKSON. EPHRAIM B. LEE.

Witnesses:

H. C. RETAN, D. W. KNAPP.

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